User:Macrakis/Aquastronomy

Aquastronomy is the science of water in extraterrestrial contexts.

Water is found in many extraterrestrial contexts:
 * On planetary and lunar bodies.
 * As an important constituent of many classes of comet.
 * In the interstellar medium.

In all three cases, the water may be found in solid, liquid, or gaseous form.

Etymology
Aquastronomy is a modern compound of the Latin prefix aqua- and the Greek astronomy, making it a hybrid word, which would formerly have been considered a barbarism. The correctly formed compound would be hydrastronomy or astrohydrology.